A device for measuring the deoxygenation capacity of deoxygenating resin

Abstract

The present application relates to a device for measuring the deoxygenation capacity of a deoxygenation resin, comprising: a deoxygenation circuit, which comprises a first circulating water pump, a constant temperature stirring water tank and a deoxygenation ion exchange column connected in series through a first pipeline; the constant temperature stirring water tank is also connected to an air supply device and a nitrogen supply device; a desalination circuit, which comprises a second circulating water pump, a desalination ion exchange column and the constant temperature stirring water tank connected in series through a second pipeline; an integrated data processing system, which is connected to the deoxygenation circuit and the desalination circuit; and two dissolved oxygen detection devices are connected to the first pipeline, and along the flow direction of the desalted water in the first pipeline, the two dissolved oxygen detection devices are respectively located upstream and downstream of the deoxygenation ion exchange column. The measuring device provided in the present application can ensure that the temperature and flow rate of the desalted water medium are consistent with the actual working environment of the deoxygenation resin, adopt a self-circulating circuit, save resources, and improve economic benefits. The integrated data processing system can realize fully automatic intelligent control.

Description

Technical Field

[0001] The present application relates to the technical field of nuclear reactor deoxygenation, and in particular to a device for measuring the deoxygenation capacity of a deoxygenation resin. Background Art

[0002] The main circuit of the reactor of a ship's nuclear power plant must use a large-capacity, high-temperature resistant deoxygenation resin to treat the dissolved oxygen in the device water, and the dissolved oxygen in the effluent water quality is required to be less than 0.05 mg / L. Therefore, the accurate determination of the deoxygenation capacity of the deoxygenation resin during actual operation has a stronger guiding significance for its performance improvement and final engineering application. During the operation of the water treatment device of a ship's nuclear power plant, the operating flow rate is high and the medium water temperature is high. To accurately determine the working deoxygenation capacity of the deoxygenation resin, it is necessary to ensure that the temperature and flow rate during the test are consistent with the actual use conditions of the deoxygenation resin.

[0003] At present, the use of gravity flow device to determine the deoxygenation capacity of deoxygenation resin usually requires about 10 tons of desalted water, resulting in a large waste of resources. In addition, the test conditions are relatively simple and it is difficult to restore the actual application scenarios of the deoxygenation resin, resulting in low accuracy of the test results. Summary of the invention

[0004] The embodiment of the present application provides a device for measuring the deoxygenation capacity of a deoxygenating resin, so as to solve the problems of large resource consumption and low accuracy of test results in the device for measuring the deoxygenation capacity of a deoxygenating resin in the related art.

[0005] The technical solutions provided by this application are as follows:

[0006] The present application provides a device for measuring the deoxygenation capacity of a deoxygenating resin, comprising:

[0007] The deoxygenation circuit includes a first circulating water pump, a constant temperature stirring water tank and a deoxygenation ion exchange column connected in series through a first pipeline; the constant temperature stirring water tank is also connected to an air supply device and a nitrogen supply device;

[0008] A desalination loop, comprising a second circulating water pump, a desalination ion exchange column and the constant temperature stirring water tank connected in series through a second pipeline;

[0009] An integrated data processing system connected to the deaeration circuit and the desalination circuit;

[0010] Furthermore, two dissolved oxygen detection devices are connected to the first pipeline, and along the flow direction of the deionized water in the first pipeline, the two dissolved oxygen detection devices are respectively located upstream and downstream of the deoxygenation ion exchange column.

[0011] In some embodiments, the dissolved oxygen detection device includes a third pipeline and a first valve, a cooler, a dissolved oxygen sensor and a first conductivity meter connected in series on the third pipeline in sequence, and one end of the third pipeline is connected to the first pipeline.

[0012] In some embodiments, the dissolved oxygen detection device further includes a second valve, and the second valve is connected to the cooler through a cooling water pipeline.

[0013] In some embodiments, the dissolved oxygen detection device also includes a fourth pipeline and a third valve and a sampling tube connected in series on the fourth pipeline, one end of the fourth pipeline is connected to the third pipeline, and along the flow direction of desalted water in the third pipeline, the fourth pipeline is located downstream of the first conductivity meter.

[0014] In some embodiments, the outlet ends of the third pipes of the two dissolved oxygen detection devices are connected to the first pipe, and along the flow direction of the deionized water in the first pipe, the outlet ends are located downstream of the deoxygenation ion exchange column and upstream of the constant temperature stirring water tank;

[0015] The inlet ends of the third pipelines of the two dissolved oxygen detection devices are connected to the first pipeline, and along the flow direction of the deionized water in the first pipeline, the inlet ends of the third pipelines of the two dissolved oxygen detection devices are respectively located upstream and downstream of the deoxygenation ion exchange column.

[0016] In some embodiments, the nitrogen supply device includes a fifth pipeline and a fourth valve and a nitrogen bottle connected in series on the fifth pipeline in sequence, and one end of the fifth pipeline is connected to the constant temperature stirring water tank.

[0017] In some embodiments, the deoxygenation circuit further includes a fifth valve, and the fifth valve is connected in parallel to the deoxygenation ion exchange column through a sixth pipeline;

[0018] The first pipeline is also provided with a sixth valve and a seventh valve, and along the flow direction of the deionized water in the first pipeline, the sixth valve and the seventh valve are both located downstream of the deoxygenation ion exchange column;

[0019] And, one end of the sixth pipeline is located between the sixth valve and the seventh valve.

[0020] In some embodiments, the air supply device includes a seventh pipe and an air filter and an air pump connected in series on the seventh pipe in sequence, and one end of the seventh pipe is connected to the constant temperature stirring water tank.

[0021] In some embodiments, a flow meter and a timer are provided on the first pipeline.

[0022] In some embodiments, a second conductivity meter is provided on the second pipeline, and along the flow direction of the desalted water in the second pipeline, the second conductivity meter is located downstream of the desalting ion exchange column.

[0023] The beneficial effects of the technical solution provided by this application include:

[0024] (1) The desalination circuit of the present application can maintain the temperature of the desalted water at a certain value through a constant temperature stirring water tank. In addition, the dissolved oxygen content in the desalted water can be adjusted through an air supply device and a nitrogen supply device, thereby providing the test system with a desalted water medium that is consistent with the actual working environment of the resin, which is conducive to improving the accuracy of the test results;

[0025] (2) The desalination circuit and deoxygenation circuit of the present application realize the recycling of water medium, and a desalination ion exchange column is set to treat the water quality of the water tank in real time to ensure that the conductivity of the water quality at the inlet of the deoxygenation ion exchange column meets the requirements. The entire test process only uses about 60L of desalted water, while if the test of the working deoxygenation capacity of ordinary deoxygenation resin is used, it usually takes about 10t of desalted water. The present application can realize water self-circulation, save resources, and improve economic benefits;

[0026] (3) The present application sets up an integrated data processing system, which can collect, monitor and analyze data, and realize automatic control of the working and on-off status of the deoxygenation circuit and the desalination circuit. The data is processed by software to automatically obtain the working deoxygenation capacity of the deoxygenation resin, which has the advantages of high degree of automation and accurate detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of the structure of a device for measuring the deoxygenation capacity of a deoxygenation resin provided in an embodiment of the present application.

[0029] In the figure: 1, first pipeline; 2, first circulating water pump; 3, constant temperature stirring water tank; 12, 4, deoxygenation ion exchange column; 5, air supply device; 6, nitrogen supply device; 7, second pipeline; 8, second circulating water pump; 9, desalination ion exchange column; 10, integrated data processing system; 11, third pipeline; 12, first valve; 13, cooler; 14, dissolved oxygen sensor; 15, first conductivity meter; 16, second valve; 17, cooling water pipeline; 18, fourth pipeline; 19, third valve; 20, fifth pipeline; 21, fourth valve; 22, nitrogen bottle; 23, fifth valve; 24, sixth pipeline; 25, sixth valve; 26, seventh valve; 27, seventh pipeline; 28, air filter; 29, air pump; 30, second conductivity meter. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] See also Figure 1 As shown, the embodiment of the present application provides a device for measuring the deoxygenation capacity of a deoxygenating resin, which comprises a first circulating water pump 2, a constant temperature stirring water tank 3 and a deoxygenating ion exchange column 4 connected in series through a first pipeline 1; the constant temperature stirring water tank 3 is also connected to an air supply device 5 and a nitrogen supply device 6;

[0032] A desalination circuit, which includes a second circulating water pump 8, a desalination ion exchange column 9 and the constant temperature stirring water tank 3 connected in series through a second pipeline 7;

[0033] An integrated data processing system 10 connected to the deoxygenation loop and the desalination loop;

[0034] Furthermore, two dissolved oxygen detection devices are connected to the first pipeline 1 , and along the flow direction of the deionized water in the first pipeline 1 , the two dissolved oxygen detection devices are respectively located upstream and downstream of the deoxygenation ion exchange column 4 .

[0035] The working detection principle of the device provided by this application is:

[0036] The constant temperature stirring water tank 3 has a heating and heat preservation function. The desalted water can be heated to the required temperature through the constant temperature stirring water tank, providing a desalted water medium consistent with the actual working environment of the deoxygenation resin. The high-temperature desalted water enters the deoxygenation ion exchange column 4 through the first circulating water pump 2, and returns to the constant temperature stirring water tank 3 after being deoxygenated by the deoxygenation resin in the column.

[0037] The dissolved oxygen detection device at the inlet can monitor and record the dissolved oxygen content of the inlet water of the deoxygenation ion exchange column 4 in real time. By monitoring the dissolved oxygen content of the inlet water, the system automatically adds air through the air supply device 5 and the nitrogen supply device 6 to ensure that the dissolved oxygen content of the inlet water is constant.

[0038] The dissolved oxygen detection device at the outlet can monitor and record the dissolved oxygen content of the outlet water of the deoxygenation ion exchange column 4 in real time. By monitoring the dissolved oxygen content of the outlet water, the failure of the deoxygenation resin can be judged. If the resin fails, the test device will stop automatically. Finally, the deoxygenation capacity of the deoxygenation resin can be calculated based on the amount of deionized water and the dissolved oxygen concentration passing through the deoxygenation ion exchange column 4.

[0039] The desalted water in the constant temperature stirring water tank 3 also enters the desalting ion exchange column 9 for purification through the second circulating water pump 8, and returns to the constant temperature stirring water tank 3 after being desalted by the desalting resin in the column.

[0040] By integrating the data processing system 10, the loop flow rate, the dissolved oxygen content of the inlet water quality can be effectively adjusted, and the test results can be accurately and effectively monitored. The entire device has a high degree of integration and realizes automated testing, which provides a new idea for testing the working deoxygenation capacity of the new large-capacity high-temperature resistant self-reactive deoxygenating resin.

[0041] In some embodiments, the dissolved oxygen detection device includes a third pipeline 11 and a first valve 12, a cooler 13, a dissolved oxygen sensor 14 and a first conductivity meter 15 connected in series on the third pipeline 11 in sequence, and one end of the third pipeline 11 is connected to the first pipeline 1.

[0042] The cooler 13 is used to reduce the temperature of the desalted water to be tested, providing favorable conditions for subsequent dissolved oxygen content detection. Through the dissolved oxygen sensor 14 and the first conductivity meter 15, the integrated data processing system 10 can obtain the dissolved oxygen content and ion content of the inlet and outlet water of the deoxygenation ion exchange column 4.

[0043] In some embodiments, the dissolved oxygen detection device further includes a second valve 16 , and the second valve 16 is connected to the cooler 13 through a cooling water pipe 17 .

[0044] Furthermore, the cooling water pipe 17 is connected to tap water, and the high-temperature desalted water is cooled by the tap water.

[0045] In some embodiments, the dissolved oxygen detection device also includes a fourth pipeline 18 and a third valve 19 and a sampling tube connected in series on the fourth pipeline 18. One end of the fourth pipeline 18 is connected to the third pipeline 11, and along the flow direction of the desalted water in the third pipeline 11, the fourth pipeline 18 is located downstream of the first conductivity meter 15.

[0046] The provision of the sampling tube enables the operator to collect the desalted water in the circulation pipeline, making it convenient for the operator to conduct manual testing of the desalted water.

[0047] In some embodiments, the outlet ends of the third pipes 11 of the two dissolved oxygen detection devices are connected to the first pipe 1, and along the flow direction of the deionized water in the first pipe 1, the outlet ends are located downstream of the deoxygenation ion exchange column 4 and upstream of the constant temperature stirring water tank 3;

[0048] The inlet ends of the third pipes 11 of the two dissolved oxygen detection devices are connected to the first pipe 1, and along the flow direction of the deionized water in the first pipe 1, the inlet ends of the third pipes 11 of the two dissolved oxygen detection devices are respectively located upstream and downstream of the deoxygenation ion exchange column 4.

[0049] By connecting the outlet end of the third pipe 11 in the dissolved oxygen detection device to the first pipe 1, the desalted water after detection can be circulated back to the constant temperature stirring water tank 3, further saving the amount of desalted water.

[0050] In some embodiments, the nitrogen supply device 6 includes a fifth pipeline 20 and a fourth valve 21 and a nitrogen bottle 22 which are sequentially connected in series on the fifth pipeline 20 , and one end of the fifth pipeline 20 is connected to the constant temperature stirring water tank 3 .

[0051] The nitrogen bottle 22 is used to store nitrogen, which can provide nitrogen to the constant temperature stirring water tank 3 for adjusting the dissolved oxygen content in the desalted water to maintain it at a predetermined value.

[0052] In a preferred embodiment, the fourth valve 21 is electrically connected to the data integration processing system 10 , and the data integration processing system 10 can control the opening and closing of the fourth valve 21 and the degree of opening and closing.

[0053] In some embodiments, the deoxygenation circuit further includes a fifth valve 23, and the fifth valve 23 is connected in parallel to the deoxygenation ion exchange column 4 through a sixth pipeline 24;

[0054] The first pipeline 1 is also provided with a sixth valve 25 and a seventh valve 26, and along the flow direction of the deionized water in the first pipeline 1, the sixth valve 25 and the seventh valve 26 are both located downstream of the deoxygenation ion exchange column 4;

[0055] Furthermore, one end of the sixth pipeline 24 is located between the sixth valve 25 and the seventh valve 26 .

[0056] The sixth pipeline 24 is used for bypassing and regulating the flow of deionized water entering the deoxygenation ion exchange column 4 .

[0057] In some embodiments, the air supply device 5 includes a seventh pipe 27 and an air filter 28 and an air pump 29 which are sequentially connected in series to the seventh pipe 27 , and one end of the seventh pipe 27 is connected to the constant temperature stirring water tank 3 .

[0058] The air filter 28 is used to filter impurities and dust in the air to ensure that the air entering the constant temperature stirring water tank 3 is clean air and meets the water quality requirements of desalted water.

[0059] The air from the external environment enters the constant temperature stirring water tank 3 through the air filter 28 and the air pump 29, and cooperates with the nitrogen supply device 6 to control the dissolved oxygen content of the desalted water.

[0060] In some embodiments, a flow meter and a timer are provided on the first pipeline 1 .

[0061] The flow meter and the timer are used to count the amount of deionized water passing through the deoxygenation ion exchange column 4 . Furthermore, in order to improve the accuracy of the test result, the flow meter is preferably arranged at the inlet end of the deoxygenation ion exchange column 4 .

[0062] In some embodiments, a second conductivity meter 30 is provided on the second pipeline 7 , and along the flow direction of the desalted water in the second pipeline 7 , the second conductivity meter 30 is located downstream of the desalting ion exchange column 9 .

[0063] The second conductivity meter 30 is used to detect the conductivity data of the water outlet of the desalination ion exchange column 9 , so as to monitor the usage of the desalination resin in the desalination ion exchange column 9 .

[0064] In the device provided by the present application, all monitoring data are monitored and analyzed by an integrated data processing system 10, and the integrated data processing system controls the test device according to the monitoring data. The opening and closing of the air supply device 5 and the nitrogen supply device 6 are adjusted by controlling the inlet dissolved oxygen content; the failure of the deoxygenation resin to be tested is monitored by the outlet dissolved oxygen content. If it fails, the test device is automatically closed; the use of the desalination resin is monitored by monitoring the outlet conductivity meter data of the desalination resin; the loop flow rate is automatically adjusted by monitoring the flow meter to control it within the range required for the test; and the working deoxygenation capacity of the deoxygenation resin is obtained through the integrated data processing system.

[0065] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0066] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0067] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A device for measuring the deoxygenation capacity of a deoxygenating resin, characterized in that: include: A deoxygenation circuit, comprising a first circulating water pump (2), a constant temperature stirring water tank (3) and a deoxygenation ion exchange column (4) connected in series via a first pipeline (1); the constant temperature stirring water tank (3) is also connected to an air supply device (5) and a nitrogen supply device (6); A desalination loop, comprising a second circulating water pump (8), a desalination ion exchange column (9) and the constant temperature stirring water tank (3) connected in series via a second pipeline (7); An integrated data processing system (10) connected to the deoxygenation circuit and the desalination circuit; Furthermore, two dissolved oxygen detection devices are connected to the first pipeline (1), and along the flow direction of the deionized water in the first pipeline (1), the two dissolved oxygen detection devices are respectively located upstream and downstream of the deoxygenation ion exchange column (4); The dissolved oxygen detection device comprises a third pipeline (11), and a first valve (12), a cooler (13), a dissolved oxygen sensor (14) and a first conductivity meter (15) which are sequentially connected in series on the third pipeline (11), and one end of the third pipeline (11) is connected to the first pipeline (1); The dissolved oxygen detection device further comprises a fourth pipeline (18) and a third valve (19) and a sampling tube which are sequentially connected in series on the fourth pipeline (18); one end of the fourth pipeline (18) is connected to the third pipeline (11), and along the flow direction of the deionized water in the third pipeline (11), the fourth pipeline (18) is located downstream of the first conductivity meter (15).

2. The device for measuring the deoxygenation capacity of deoxygenating resin according to claim 1, characterized in that: The dissolved oxygen detection device further comprises a second valve (16), wherein the second valve (16) is connected to the cooler (13) via a cooling water pipeline (17).

3. The device for measuring the deoxygenation capacity of deoxygenating resin according to claim 1, characterized in that: The outlet ends of the third pipes (11) of the two dissolved oxygen detection devices are both connected to the first pipe (1), and along the flow direction of the deionized water in the first pipe (1), the outlet ends are both located downstream of the deoxygenation ion exchange column (4) and upstream of the constant temperature stirring water tank (3); The inlet ends of the third pipes (11) of the two dissolved oxygen detection devices are both connected to the first pipe (1), and along the flow direction of the deionized water in the first pipe (1), the inlet ends of the third pipes (11) of the two dissolved oxygen detection devices are respectively located upstream and downstream of the deoxygenation ion exchange column (4).

4. The device for measuring the deoxygenation capacity of deoxygenating resin according to claim 1, characterized in that: The nitrogen supply device (6) comprises a fifth pipeline (20) and a fourth valve (21) and a nitrogen bottle (22) which are sequentially connected in series on the fifth pipeline (20); one end of the fifth pipeline (20) is connected to the constant temperature stirring water tank (3).

5. The device for measuring the deoxygenation capacity of deoxygenating resin according to claim 1, characterized in that: The deoxygenation circuit also includes a fifth valve (23), and the fifth valve (23) is connected in parallel to the deoxygenation ion exchange column (4) through a sixth pipeline (24); The first pipeline (1) is also provided with a sixth valve (25) and a seventh valve (26), and along the flow direction of the deionized water in the first pipeline (1), the sixth valve (25) and the seventh valve (26) are both located downstream of the deoxygenation ion exchange column (4); Furthermore, one end of the sixth pipeline (24) is located between the sixth valve (25) and the seventh valve (26).

6. The device for measuring the deoxygenation capacity of deoxygenating resin according to claim 1, characterized in that: The air supply device (5) comprises a seventh pipe (27), and an air filter (28) and an air pump (29) which are sequentially connected in series to the seventh pipe (27); one end of the seventh pipe (27) is connected to the constant temperature stirring water tank (3).

7. The device for measuring the deoxygenation capacity of deoxygenating resin according to claim 1, characterized in that: The first pipeline (1) is provided with a flow meter and a timer.

8. The device for measuring the deoxygenation capacity of deoxygenating resin according to claim 1, characterized in that: A second conductivity meter (30) is provided on the second pipeline (7), and along the flow direction of the desalted water in the second pipeline (7), the second conductivity meter (30) is located downstream of the desalting ion exchange column (9).

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